@media (min-width:0px){
    html{font-size:12px;}
}
@media (min-width: 320px){
    html{font-size:12px;}
}
@media (min-width: 340px){
    html{font-size:13px;}
}
@media (min-width: 360px){
    html{font-size:14px;}
}
@media (min-width: 380px){
    html{font-size:15px;}
}
@media (min-width: 400px){
    html{font-size:15px;}
}
@media (min-width: 420px){
    html{font-size:16px;}
}
*{
    margin: 0;
    padding: 0;
}

.big{
    width: 100%;
    position: relative;
}
.about{
    width: 100%;
    margin-top: 1rem;
    position: relative;
}
.about img{
    float: left;
    position: absolute;
    top:5px;
    left: 10px;

}
.about p{
    text-align: center;
    font-family:PingFang-SC-Medium;
    font-weight:500;
    color:rgba(0,0,0,1);
    font-size: 1.2rem;
}
.img1{
    margin: 0 auto;
    margin-top: 4.5rem;
    text-align: center;
}
.glw{
    text-align: center;
    font-family:PingFang-SC-Medium;
    font-weight:500;
    color:rgba(33,33,33,1);
    font-size: 1.2rem;
    margin-top: 1.2rem;
}
.code{
    font-family:PingFang-SC-Regular;
    font-weight:400;
    color:rgba(173,173,173,1);
    font-size: 1rem;
    margin-top: 0.8rem;
    text-align: center;
}
.lc{
    width: 100%;
    position: fixed;
    font-size: 1rem;
    font-family:PingFang-SC-Regular;
    font-weight:400;
    color:rgba(173,173,173,1);
    text-align: center;
    bottom: 3rem;
    left: 0;
}
